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September 12,2023

Analysis of Two Reasons for Blowing of Self Recovery Fuses during Operation.fast blow fuse screwfix

Self recovery fuses are one of the preferred protective components for many electronic circuits. When a self recovery fuse is in operation, it is inevitable that the circuit will blow. For recoverable fuses that blow in daily use, we must understand the cause in order to solve the problem with the circuit board. Below, we will follow the editor to understand the two situations where self recovery fuses blow during operation: Scenario 1: The self recovery fuse is broken in the middle and intact on both sides, which is caused by excessive load current causing the fuse to blow or be damaged, and the melting point to decrease, but the current is not too high. Scenario 2: When the self recovery fuse melts, there are burn marks and black and white ash near the fastening screws. This is caused by an instantaneous short circuit of the power supply and a high short-circuit current. From the above two situations, it can be concluded that when a self recovery fuse blows during operation, i

September 22,2023

Surface Mount Fuses.motorcycle fuse block with relay

1. The location where the patch fuse is connected to the circuit When connecting patch fuses in a circuit, it is important to be careful not to connect the fuse to the neutral or ground wire. The correct connection is to connect it to the live wire, so that when the circuit is overloaded, the fuse can be blown in a timely manner to protect circuit safety. If only connected to the neutral line or ground wire, the fuse should blow in a timely manner, but the voltage carried by the positive and negative poles through the live wire may also cause the circuit to burn out. Therefore, the priority order for fuses to be connected to the circuit is the live wire, neutral wire, and ground wire. The location where the fuse is connected to the circuit 2. Connection method of patch fuse in circuit Usually, fuses are connected in series in a circuit. If the fuses are connected in parallel in the circuit, the current cannot be disconnected in a timely manner in case of abnormal conditions in

September 13,2023

Ten Elements of Fuse Selection

Fuse selection is a step that circuit design engineers must be cautious about. If the protective components of the circuit are not selected properly, the entire process of powering on the circuit will be affected, and the normal use of the product will also be affected. So today, let's learn about the ten key points of fuse selection: Key points for fuse selection: rated current; Key points for fuse selection 2: rated voltage; Key points for fuse selection: environmental temperature; Key points for fuse selection: voltage drop/cold resistance; Key points for fuse selection: fusing characteristics: overload capacity, time/current characteristics; Key point six for fuse selection: breaking capacity; Key point seven for fuse selection: melting heat value; Key points for fuse selection: durability (service life); Key points for fuse selection nine: structural features: appearance/size, installation form; Key points for fuse selection: safety certification.

October 13,2023

air conditioner fuse box replacement.PTC1812 self recovery fuse

The PTC1812 self recovery fuse is a lead-free surface mount self recovery fuse with a volume of 45mm * 32mm patch fuse. Among the self recovery patch fuses, the PTC1812 series has a moderate volume and is suitable for use on many electronic product motherboards, occupying just the right amount of space. The voltage range is 6V-60V, and the current has specifications such as 100MA-4A (please refer to the 1812 series specifications for details). The most commonly used models are PTC1812-010, PTC1812-050, PTC1812-075, PTC1812-260, and PTC1812-300. PTC1812 self recovery fuse can be applied to plug and play protection devices for USB peripheral devices, hard drives, optical drives, motherboards and peripheral devices, PDA/digital cameras, and game console ports.

September 08,2023

Brief Description of Self Recovery Fuses in SMD Packaging.how does a resettable fuse work

SMD self recovery fuse features: 1. Meet RoHS requirements 2. EIA size: 0805-2920 3. Maintain current range: 0.05-3.0A 4. The voltage level ranges from 6V to 60V, meeting the needs of computers and various electronic applications 5. Small pad size 6. Fast action time 7. Low impedance 8. Working voltage range: -40~+85 ℃ 9. Safety certification: UL/cUL/TUV 10. Small size, sturdy structure, and convenient for automated installation 11. With a wide variety and complete specifications, it can replace imported models such as Raychem, LITTLEFUSE, BOURNS, AEM, etc Application range of patch self recovery fuse: 1. Computers and peripheral devices 2. Mobile phone battery pack 3. Automotive Electronics 4. Power supply unit 5. Communication system